Alteration of lipid peroxidation and antioxidant enzymes in young Malaysian IDDM patients

The present study was designed to explore the relationship between lipid peroxidation and antioxidant enzymes in young Malaysian insulin dependant diabetes mellitus (IDDM) patients. Indicative parameters of lipid peroxidation, activities of antioxidant enzymes and diabetes parameters were evaluated in single blood samples from 30 young type 1 diabetic patients and 30 healthy control subjects. Antioxidant enzymes namely superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) were significantly decreased while plasma malondialdehyde (MDA), an indicator for lipid peroxidation was significantly increased in IDDM patients compared to control subjects. Positive correlations between HbA1c and MDA; fasting blood glucose (FBG) and MDA and negative correlations between HbA1c and SOD; MDA and SOD were observed in these patients. No significant correlation existed between HbA1c and fasting blood glucose, GPx or CAT in the diabetic patients. The strong correlations found between lipid peroxidation, antioxidant enzymes and diabetes parameters confirms the existence of oxidative stress in our IDDM patients.     

2型糖尿病患者糖化血红蛋白、空腹血糖与视网膜病变关系的研究

目的探讨糖化血红蛋白(HbA1c)、空腹血糖(FBG)与2型糖尿病性视网膜病变(DR)的关系。方法对156例 2型糖尿病(DM)中伴有DR患者(DR组)71例、未伴有DR患者(NDR组)85例进行HbA1c、FBG检测,分析HbA1c、FBG 与DR的关系。结果 DR组的HbA1c水平显著高于NDR组(P<0．01),且HbA1c水平越高,DR发生率也增加(P<0． 05)。但两组FBG水平比较差异无显著性(P>0．05)。结论 HbA1c水平对判断DR的病情变化和预后有参考价值,可作为监测DM患者DR发生、发展的重要指标。     

糖尿病患者糖化血红蛋白和Lp(a)水平关系研究

目的:探讨Ⅱ型糖尿病血糖控制欠佳时,糖化血红蛋白(GHb)与Lp(a)浓度的关系。方法:采用免疫浊度法对20例GHb(HbA1c)高于正常的Ⅱ型糖尿病患者和20例正常对照组的血浆Lp(a)进行测定。结果:GHb升高组和正常对照组的Lp(a)分布均呈偏态;GHb升高组Lp(a)显著高于对照组(p<0.01);根据HbA1c水平,将GHb升高组分成三组,三组间Lp(a)的水平差异无统计学意义(p>0.05);相关分析发现Lp(a)与HbA1c无相关性(p>0.05)。结论:Ⅱ型糖尿病GHb的升高对Lp(a)水平无影响。     

Glycemic control, oxidative stress, and lipid profile in children with type 1 diabetes mellitus

BACKGROUND: In diabetes mellitus, persistence of hyperglycemia was reported to cause increased production of oxidative parameters including malondialdehyde (MDA). In the present study, the effect of glycemic control on oxidative stress and the lipid profile of pediatric type 1 diabetes mellitus (DM) patients were investigated. METHODS: Serum total cholesterol, HDL cholesterol, VLDL cholesterol, apolipoprotein A, apolipoprotein B, lipoprotein a, HbA(1c), and MDA levels were assessed in 96 children with type 1 DM. Study cases were evaluated in two groups in view of their mean HbA(1c) values, as metabolically well controlled (HbA(1c) < or =8%) and poorly controlled (HbA(1c) >8%) patients with DM. Fifty healthy children were included as normal controls. RESULTS: Total cholesterol, LDL cholesterol, apolipoprotein A, apolipoprotein B, and MDA levels of total diabetic patients were significantly (p<0.05) higher than those of the control group. Serum MDA levels and MDA/LDL cholesterol index were significantly increased in metabolically poorly controlled in relation to metabolically well-controlled DM patients and were similar in metabolically well-controlled DM patients with relation to control group and in metabolically poorly controlled patients with relation to control group. CONCLUSIONS: In the present study, increased levels of MDA, MDA/LDL index, and dyslipoproteinemia showed that especially metabolically poorly controlled DM children are at high risk of atherosclerosis and vascular complications of DM and that there is a significant relationship between the lipid profile and oxidative stress. Thus, it may be appropriate to evaluate MDA in addition to routine laboratory assessments in evaluation of type 1 DM pediatric patients.     

Study of oxidative stress in type 2 diabetic patients and its relationship with glycated hemoglobin

OBJECTIVE: To evaluate the activity of antioxidant enzymes in diabetic patients and also to determine the correlation between hyperglycemia and lipid peroxidation. METHODS: Thirty patients with type 2 diabetes and 30 healthy individuals control group participated in this case-control study. The patients were referred to Sina Hospital, Hamadan, Iran from April to June 2006. Glycated hemoglobin HbA1c was measured as a marker of hyperglycemia using the chromatography method Biosystem and malondialdehyde MDA was determined using the colorimetric method. Glutathione peroxidase GPx and superoxide dismutase SOD activity were assessed using the UV-Vis spectrophotometric technique Randox kit. RESULTS: The mean of HbA1c was higher in diabetic patients compared to the healthy group, and the difference was statistically significant p<0.001. Serum MDA in diabetics was higher compared to those of healthy subjects p<0.001. There were significant differences in activities of SOD and GPx between the 2 studied groups indicating lower activity in diabetic patients p<0.001. There was a significant relationship between MDA and HbA1c in diabetic and healthy subjects. CONCLUSION: The data showed an increase in lipid peroxidation and oxidative stress in diabetes and also indicated a positive correlation between the degree of hyperglycemia and oxidative stress. Evaluation of oxidative status and choosing the appropriate treatment may help to support antioxidant defense in these patients.     

2型糖尿病合并腔隙性脑梗死患者血清高迁移率族蛋白B1水平及其相关因素分析

目的 探讨2型糖尿病合并腔隙性脑梗死患者血清高迁移率族蛋白B1水平及其相关因素。 方法 2型糖尿病患者280例作为糖尿病组,2型糖尿病合并腔隙性脑梗死患者280例作为糖尿病+脑梗死组,健康体检者280例作为对照组。测定患者血清高迁移率族蛋白B1水平和空腹血糖(FBG)、糖化血红蛋白(HbA1c)、空腹胰岛素(FINS)、胰岛素抵抗指数(HOMA-IR)、甘油三酯(TG)、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)水平。 结果 糖尿病组和糖尿病+脑梗死组血清高迁移率族蛋白B1水平高于对照组(P<0.05),且糖尿病组+脑梗死组高于糖尿病组(P<0.05)。糖尿病组和糖尿病+脑梗死组FBG、HbA1c、FINS、HOMA-IR、TG、TC、LDL-C高于对照组且糖尿病+脑梗死组高于糖尿病组,糖尿病组和糖尿病+脑梗死组HDL-C低于对照组,且糖尿病组+脑梗死组低于糖尿病组(P<0.05)。糖尿病+脑梗死患者血清高迁移率族蛋白B1水平与FBG、HbA1c、FINS、HOMA-IR、TG、TC、LDL-C水平呈正相关(P<0.05),与HDL-C呈负相关(P<0.05)。FINS、HOMA-IR、TG、TC、LDL-C、HDL-C是血清高迁移率族蛋白B1的影响因素(P<0.05)。 结论 2型糖尿病合并腔隙性脑梗死患者血清高迁移率族蛋白B1水平升高,其水平受FINS、HOMA-IR、TG、TC、LDL-C、HDL-C影响。      

Blood lipid peroxidation (superoxide dismutase, malondialdehyde, glutathione) levels in Egyptian type 2 diabetic patients

INTRODUCTION: The existence of hyperglycaemia produces increased oxidative stress. The depletion of antioxidants as a defensive body mechanism may increase the risk of diabetic complications. Diabetes mellitus is associated with derangements in the serum levels of several biochemical parameters, and type 2 diabetes mellitus (or non-insulin-dependent diabetes mellitus) is a risk factor for cardiovascular diseases. METHODS: Data of 80 control subjects (male:female, 40:40) and 80 diabetic patients (male:female, 40:40), of similar age, gender, body mass index and duration of diabetes mellitus (for diabetic group), were collected from government and non-government organisations during the period, 2001-2004. Blood samples were also collected. Glucose, glucosylated haemoglobin, total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), very low-density lipoprotein cholesterol (VLDLC), TC/HDL-C, HDL-C/LDL-C, triacylglycerol, malondialdehyde, glutathione and superoxide dismutase levels were determined. RESULTS: Mean cholesterol, LDL-C, VLDL-C and triacylglycerol levels were significantly higher in patients with type 2 diabetes mellitus in comparison to the control subjects, while the mean value of HDL-C was significantly lower. A significant elevation in malondialdehyde level and decrease in glutathione content were observed in both male and female diabetic patients in comparison to the control subjects. CONCLUSION: The results suggest that the increase in lipid peroxidation, and the decline in antioxidant defences, may appear early in type 2 diabetic patients, before the development of secondary complications. This phenomenon might play an important role in the initiation and progression of diabetic complications. Our results also suggest that there seems to be an imbalance between plasma oxidant and antioxidant systems in patients with type 2 diabetes mellitus.     

Correlation between anthropometric measurement,lipid profile,dietary vitamins,serum antioxidants,lipoprotein (a) and lipid peroxides in known cases of 345 elderly hypertensive South Asian aged 56–64 y–A hospital based study

ObjectiveTo address the association of dietary vitamins, anthropometric profile, lipid profile, antioxidant enzymes and lipid peroxidation in hypertensive participant compared with normotensive healthy controls.MethodsDietary intake of vitamins was assessed by 131 food frequency questionnaire items in both hypertensive participants and normotensive age-sex matched healthy controls. The associated changes in serum antioxidants and lipid peroxidation were also assessed along with lipid profile and anthropometric measurements in both groups of subjects under study.ResultsDietary vitamins intake was higher in hypertensive participants excepting for vitamin B2 and ascorbic acid compared to normotensive controls. Anthropometric variables in the hypertensive showed significant differences in weight, body mass index, waist circumference, hip circumference, waist-hip ratio and mid-arm circumference. The total cholesterol, low-density lipoprotein cholesterol, triglyceride were significantly higher (P<0.001) in hypertensive except high-density lipoprotein cholesterol which was significantly higher (P<0.001) in normotensive. The serum endogenous antioxidants and enzyme antioxidants were significantly decreased in hypertensive except serum albumin levels compared to normotensive along with concomitant increase in serum lipoprotein (a) malondialdehyde and conjugated diene levels.ConclusionsBased on the observations, our study concludes that hypertension is caused due to interplay of several confounding factors namely anthropometry, lipid profile, depletion of endogenous antioxidants and rise in oxidative stress.     

Classical cardiovascular risk factors in Trinidadian patients with type 2 diabetes mellitus are not influenced by the level of plasma glycaemia

The aim of this study is to assess the plasma glycaemia of patients attending the diabetes mellitus outpatients' clinics in Trinidad and to determine how different plasma glycaemia would affect cardiovascular disease (CVD) risk factors. One hundred and ninety-one patients (64 males, 127 females, mean age 56.6 +/- 0.8 yr) with Type 2 diabetes mellitus (mean duration 9.2 +/- 0.6 yr) attending diabetes mellitus clinics from January to April 2000 participated in the study. Anthropometric indices (weight, height, waist and hip circumferences) and blood pressure were measured and overnight fasting blood samples were collected for glycated haemoglobin (HbA1c), glucose, lipids (triglyceride, total cholesterol, LDL-cholesterol, HDL-cholesterol) and creatinine determinations. The patients were categorized into Group 1 ('well controlled'; HbA1c < 7.0%) and Group 2 ('poorly controlled'; HbA1c > 7.0%). Although the majority (85%) of patients were poorly controlled', there were no significant differences in the age, duration of diabetes mellitus, body mass index and waist/hip ratios between the two groups of patients (p > 0.05). Similarly, the blood pressure and lipid (total cholesterol, HDL-cholesterol, LDL-cholesterol) levels did not differ between the two groups (p > 0.05) although triglyceride (1.4 +/- 0.1 vs. 2.2 +/- 0.1 mmol/L) levels were higher in patients in Group 2 compared with Group 1 (p < 0.05). Multiple linear regression analysis indicates that the levels of blood pressure, lipid and anthropometric parameters were not significantly dependent on the plasma glycaemia of the patients (p > 0.05). Analysis of the data has shown that the majority of patients with Type 2 diabetes mellitus attending primary care clinics in Trinidad had poor glycaemic control. The poorly controlled patients had similar levels of CVD risk factors to 'well controlled' patients although the former were potentially at greater risk of progressing to cardiovascular disorder than 'well controlled' patients.     

糖尿病性眼肌麻痹患者糖代谢和脂代谢变化的分析

目的:探讨糖尿病性眼肌麻痹患者血糖(PBG)、糖化血红蛋白(HbA1c)与血脂变化之间的关系。方法:对36例糖尿病性眼肌麻痹患者和36例健康对照者进行隔夜空腹12 h血HbA1c、空腹血糖(FBG)、餐后2 h PBG、血清总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)检测,并进行相关性分析。结果:糖尿病性眼肌麻痹组HbA1c、FBG、PBG、TC、TG、LDL-C水平显著增高,HDL-C水平显著降低,与健康对照组相比较差异均有统计学意义(P<0.01)。糖尿病性眼肌麻痹组HbA1c与FBG、PBG呈正相关,与TC、TG存在平行升高趋势。结论:高血糖、高血脂是糖尿病并发周围神经病变的危险因素,控制血糖、改善脂代谢异常对预防和治疗糖尿病并发周围神经病变有指导意义。     

糖化血红蛋白与尿微量蛋白联合检测对早期糖尿病肾病的意义

目的:研究糖化血红蛋白(HbAlC)与尿微量蛋白N乙酰βD氨基葡萄糖苷酶(NAG),微量白蛋白(mALb)、IgG,空腹血糖(FBG)与早期糖尿病肾病(DN)的关系。方法:对我院住院及门诊310例糖尿病(DM)患者进行HbAIC、FBG、NAG、IgG、mALb进行联合检测。其中不伴DN者140例,伴DN者170例。结果:HbAIC有DN组较无DN组为高(P<0.01),HbAIC水平越高,NAG、IgG、mALb水平越高,DN的发生率越高(P<0.05),而FBG水平有DN组与无DN组差异无显著性(P>0.05)。结论:HbAIC与NAG、IgG、mALb联合检测可作为监测早期DN发生和发展的指标之一。     

糖尿病肾病患者糖化血红蛋白、胱抑素C及血脂水平调查研究

【目的】探讨2型糖尿病肾病（diabetic nephropathy,DN）患者糖化血红蛋白（glycosylated hemoglobin,HbA1c）、血清胱抑素C（cystatin C,CysC）及血脂水平的变化及其临床意义。【方法】根据患者24 h尿微量白蛋白排泄率（urinary albumin excretion rate,UAER）,将100例2型糖尿病（type 2 diabetes mellitus,T2DM）患者分为3组：单纯糖尿病组、糖尿病肾病早期组、糖尿病肾病中晚期组,并选取健康志愿者30例作为对照组。测定空腹血糖（fasting blood glucose,FBG）、HbA1c、CysC及血脂水平。【结果】糖尿病（diabetic mellitus,DM）组FBG、HbA1c、CysC、血脂与对照组比较差异有统计学意义（P〈0.05）。糖尿病肾病早期组、中晚期组FBG（[9.62±1.71）、（12.37±1.99）mmol/L]、HbA1c（[8.37%±1.07%）、（12.37%±1.03%）]、CysC（[1.78±0.51）、（6.29±0.52）mg/L]、血脂水平浓度升高,明显高于单纯糖尿病组（[7.43±0.81）mmol/L、（6.24%±0.85%）、（1.03±0.62）mg/L,P〈0.05]。糖尿病肾病中晚期组FBG、HbA1c、CysC、血脂水平高于糖尿病肾病早期组（P〈0.05）。【结论】2型DN患者HbA1c、CysC、血脂水平均明显升高,其水平与患者微血管病变程度有关,提示HbA1c、CysC、血脂水平对DN早期诊断和疾病预防有积极意义。     

大豆胚轴提取物对糖尿病大鼠血浆脂蛋白脂质过氧化的影响

[目的 ]研究大豆胚轴提取物对糖尿病大鼠血浆脂蛋白脂质过氧化的影响 .[方法 ]给GK/JclⅡ型糖尿病大鼠饲喂添加 10 0g/kg大豆胚轴提取物的饲料 2 0周 ,检测其血浆脂蛋白过氧化脂质含量 .血浆极低密度脂蛋白、低密度脂蛋白和高密度脂蛋白的分离采用序列超速离心分离法 .[结果 ]长期食用大豆胚轴提取物的GK/Jcl糖尿病大鼠血浆总过氧化脂质和高密度脂蛋白过氧化脂质明显减少 ,低密度脂蛋白过氧化脂质表观水平有所下降 .[结论 ]大豆胚轴提取物显著降低糖尿病大鼠血浆总过氧化脂质和高密度脂蛋白过氧化脂质 ,对糖尿病及其并发症的发生和发展起有效的防治作用 .     

Lycopene stabilizes lipoprotein levels during D-galactosamine/lipopolysaccharide induced hepatitis in experimental rats

ObjectiveTo investigate the effect of lycopene on lipoprotein metabolism during D-galactosamine/lipopolysaccharide (D-Gal/LPS) induced hepatitis in experimental rats.MethodsThe efficacy of lycopene was validated during D-Gal/LPS induced hepatitis by analyzing the activity of lipid metabolizing enzymes such as lipoprotein lipase (LPL), lecithin-cholesterol acyl transferase (LCAT) and hepatic triglyceride lipase (HTGL). Lipo protein analyses were done by the estimation of very low density lipoprotein cholesterol (VLDL), low density lipoprotein cholesterol (LDL) and high density lipoprotein cholesterol (HDL).ResultsThe toxic insult of D-galactosamine/lipopolysaccharide (D-Gal/LPS) in experimental group of animals reduces the normal values of lipid metabolizing enzymes due to liver injury. The significant drop in the levels of HDL and concomitant increase in the values of VLDL and LDL were observed. The pretreatment of lycopene restore these altered values to near normal level in experimental group of animals.ConclusionsIn the light of results, it can be concluded that administration lycopene stabilizes the lipoprotein levels by regulating the lipid metabolizing enzymes through its antioxidant defense and helps to maintain the normal lipid metabolism during toxic injury in liver.     

Total antioxidant capacity and levels of epidermal growth factor and nitric oxide in blood and saliva of insulin-dependent diabetic patients

BACKGROUND: The aim of this study was to examine how type 1 diabetic patients have altered levels of lipid peroxidation, antioxidant defense, NO and EGF in their plasma and saliva. We tested the differences in lipid peroxidation level, antioxidant power, and concentrations of epidermal growth factor (EGF) and nitric oxide (NO) in saliva and blood of type 1 diabetic subjects in comparison to healthy control subjects. METHODS: Nineteen subjects with type 1 diabetes mellitus and 19 healthy age- and sex-matched control subjects were included in the study. Blood and saliva samples were obtained and analyzed for thiobarbituric reactive substances (TBARS) as a marker of lipid peroxidation, ferric reducing ability (total antioxidant power), EGF and NO levels. RESULTS: TBARS levels did not show a significant difference between the two groups. Analysis of antioxidant power revealed that saliva and plasma of diabetic patients had more antioxidant power (p <0.01) than the healthy control population (107 +/- 10.35 vs. 11.14 +/- 4.66 and 192 +/- 12.3 vs. 142 +/- 15.2 mmol/L, respectively). Concentration of EGF was increased (p <0.01) in saliva whereas it was reduced (p <0.01) in plasma of diabetic patients in comparison to those of healthy subjects (2423 +/- 322 vs. 1513 +/- 341 and 125 +/- 14 vs. 346 +/- 60 pg/mL, respectively). NO level increased in both saliva and plasma of diabetic patients in comparison to those of healthy subjects (46.61 +/- 7 vs. 72.89 +/- 13 and 62.11 +/- 4.6 vs. 76.25 +/- 5 micromol/L, respectively). Blood HbA1c (%) of patients was significantly higher than that of controls (8.3 +/- 0.32 vs. 5.4 +/- 0.24, p <0.01). CONCLUSIONS: Existence of increased total antioxidant power in the presence of normal lipid peroxidation in plasma and saliva of type 1 diabetic patients indicates the existence of oxidative stress. Increased salivary EGF and NO levels in association with elevated TAOP is interesting and should be further studied.     

中西医结合疗法对妊娠期糖尿病患者血糖及血脂水平的影响

目的 观察中西医结合治疗妊娠期糖尿病(GDM)患者血糖及血脂的临床疗效.方法 将妊娠期糖尿病患者120例回顾性均分为治疗组和对照组,治疗组采用饮食控制+胰岛素治疗+中药治疗,对照组采用饮食控制+胰岛素治疗,比较两组患者空腹血糖(FPG)、糖化血红蛋白(HbA1c)、甘油三酯(TG)、胆固醇(CHO)、低密度脂蛋白(LDL-C)的差异.结果 对照组治疗前后空腹血糖和糖化血红蛋白差异有显著性,甘油三酯、胆固醇和低密度脂蛋白间差异无显著性;治疗组治疗前后所有指标差异均有显著性.两组治疗后比较,空腹血糖、糖化血红蛋白和甘油三酯间比较,差异有显著性,而胆固醇和低密度脂蛋白差异无显著性.结论 中西医结合治疗可以有效控制妊娠期糖尿病患者的血脂、血糖水平,较单纯应用西医治疗效果更好.     

GDM母亲婴儿脐血脂联素与糖脂代谢、胎儿生长发育的关系

目的 探讨妊娠期糖尿病（gestational diabetes mellitus,GDM）母亲婴儿脐血脂联素与糖脂代谢、胎儿生长发育的关系。 方法 选取148例GDM母亲婴儿作为研究对象,根据胎儿出生体重和胎龄分为小于胎龄（small for gestational age,SGA）组48例、适于胎龄（appropriate gestational age,AGA）组59例、大于胎龄（large than gestational age,LGA）组41例。检测其脐血中血清脂联素及血糖、血脂指标水平,分析脐血中脂联素水平与糖脂代谢、胎儿生长发育各指标的关系。 结果 3组胎龄、出生体重、出生体重指数、脐血脂联素、脐血糖化血红蛋白（glycated hemoglobin,HbA1c）、脐血胰岛素、母血胰岛素等差异有统计学意义（P＜0.05）,3组性别、脐血血糖、脐血三酰甘油、脐血胆固醇、脐血低密度脂蛋白胆固醇、脐血高密度脂蛋白胆固醇、脐血胰岛素抵抗指数（homeostasis model assessment-insulin resistance,HOMA-IR）差异无统计学意义（P＞0.05）;GDM母亲年龄、孕前体重、分娩时体重、孕前体重指数、孕期体重指数增加量、母血血糖、母血HbA1c、母血HOMA-IR等差异均无统计学意义（P＞0.05）。Pearson相关性分析结果显示,胎儿脐血中脂联素与新生儿胎龄、新生儿出生体重、新生儿出生体量指数、脐血HOMA-IR呈正相关,与脐血HbA1c、脐血胰岛素呈负相关（P＜0.05）。多元线性回归分析结果显示,新生儿出生体重指数、脐血脂联素、脐血HbA1c、脐血胰岛素是胎儿生长发育的影响因素（P＜0.05）。 结论 脐血脂联素与胎儿糖脂代谢及生长发育呈正相关关系,其水平可反映胎儿糖脂代谢及生长发育情况,可为促进胎儿正常生长发育提供指导依据,减少胎儿发生胰岛素抵抗。     

2型糖尿病患者抑郁情绪与糖化血红蛋白、血脂及其应对方式的研究

目的　探讨2型糖尿病患者抑郁情绪与糖化血红蛋白、血脂及其应对方式的关系。方法　根据Zung氏抑郁自评量表(self-rating depression scale, SDS)测定结果将73例2型糖尿病患者分为躯体+抑郁情绪组和躯体障碍组,并用焦虑自评量表(self-rating anxiety scale, SAS)进行验证考察。测定两组患者糖化血红蛋白（HbA1-c）、甘油三酯(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C),同时进行医学应对问卷(medical copingmodes questionaire,MCMQ)评定。结果　躯体、抑郁情绪组TG、TC、LDL-C、SAS标准分、面对、回避、屈服的均值比躯体障碍组高,HbA1-c、HDL-C比躯体障碍组低,其中SAS和屈服的均值差异有统计学意义(P<0. 01),两组间HbA1-c、血脂均无统计学意义。结论　2型糖尿病抑郁情绪与患者的焦虑情绪和使用屈服应对方式有关,与 HbA1-c、血脂无相关性。     

Serum metrix metalloproteinase-9 combined with homocysteine, IL-6, TNF-α, CRP, HbAlc and lipid profile in the incipient diabetic nephropathy with or without macrovascular diseases

Objective ： To evaluate the changes of serum matrix metalloproteinase-9 （romp-9） in patients of incipient diabetic nephropathy with or without macrovascular disease and to analyze the factors associated with homocysteine（hcy）, interleukin-6（IL-6）, tumor necrosis factor-alpha （TNF-α）, highly sensitive C-reactive protein （hsCRP）, HbAlc and lipid profile in those patients in order to know whether this marker or other factors are more important to induce diabetic macrovascular disease. Methods： Type 2 diabetes mellitus（T2DM） subjects with incipient diabetic nephropathy with or without macrovascular disease were selected for participation and divided into 2 groups. The patients in group 1 （n= 38） used insulin, and patients in group 2 （n=34） were treated with an oral antidiabetic drug. Then serum mmp-9, hey, IL-6 and TNF-α in these patients were measured, and compared to the healthy subjects as control （n= 16）. The results were analyzed by SPSS13. Results： Serum romp-9 and hcy of the patients having incipient diabetic nephropathy with macrovascular disease were higher than that of patients without macrovascular disease （P〈0.01）. For insulin-injected patients, whether they accompanied with macrovascular diseases or not, the serum levels of romp-9, hcy, IL-6 and TNF-α were all lower, but no significant statistics compared with non-insulin used patients or the healthy subjects. The serum level of romp-9 was more correlated with the serum hcy in antidiabetic drug used patients. （P〈0. 000） Conclusion： The serum level of romp-9 plays an important role of pathogenesis in the macrovascular disease in the incipient diabetic patients, and the serum level of hcy also can reflect the severely degree of macrovascular disease in these patients, insulin can reduce these markers.     

Investigation of hypoglycemic,hypolipidemic and antioxidant activities of aqueous extract of Terminalia paniculata bark in diabetic rats

Objective

To investigate the hypoglycemic, hypolipidemic and antioxidant activities of aqueous extract of Terminalia paniculata bark (AETPB) in streptozotocin (STZ)-induced diabetic rats.

Methods

Acute toxicity was studied in rats after the oral administration of AETPB to determine the dose to assess hypoglycemic activity. In rats, diabetes was induced by injection of STZ (60 mg/kg, i.p.) and diabetes was confirmed 72 h after induction, and then allowed for 14 days to stabilize blood glucose level. In diabetic rats, AETPB was orally given for 28 days and its effect on blood glucose and body weight was determined on a weekly basis. At the end of the experimental day, fasting blood sample was collected to estimate the haemoglobin (Hb), glycosylated haemoglobin (HbA1c), serum creatinine, urea, serum glutamate-pyruvate transaminase (SGPT), serum glutamate-oxaloacetate transaminase (SGOT) and insulin levels. The liver and kidney were collected to determine antioxidants levels in diabetic rats.

Results

Oral administration of AETPB did not exhibit toxicity and death at a dose of 2 000 mg/kg. AETPB treated diabetic rats significantly (P<0.001, P<0.01 and P<0.05) reduced elevated blood glucose, HbA1c, creatinine, urea, SGPT and SGOT levels when compared with diabetic control rats. The body weight, Hb, insulin and total protein levels were significantly (P<0.001, P<0.01 and P<0.05) increased in diabetic rats treated with AETPB compared to diabetic control rats. In diabetic rats, AETPB treatment significantly reversed abnormal status of antioxidants and lipid profile levels towards near normal levels compared to diabetic control rats.

Conclusions

Present study results confirm that AETPB possesses significant hypoglycemic, hypolipidemic and antioxidant activities in diabetic condition.